土贝母皂苷甲增强人卵巢癌A2780/DDP细胞对顺铂的敏感性

目的探讨土贝母皂苷甲(tubeimoside 1,TBMS1)促进人卵巢癌A2780/DDP细胞对顺铂(cisplatin,DDP)的增敏作用。方法采用MTT法分别检测顺铂和TBMS1对A2780/DDP细胞作用的半抑制浓度值(IC50),将实验分为对照组:只加等量生理盐水;顺铂组:给予6μmol/L顺铂处理;联合用药Ⅰ组:6μmol/L顺铂+3μmol/L TBMS1;联合用药Ⅱ组:6μmol/L顺铂+6μmol/L TBMS1。按上述方法处理细胞后,MTT法检测细胞活力;电泳法检测细胞内DNA损伤;流式细胞技术检测细胞凋亡及周期;Western blot分析周期蛋白A(Cyclin A)和周期蛋白D1(Cyclin D1)的表达。结果 TBMS1(3、6μmol/L)与顺铂(6μmol/L)联用使人卵巢癌A2780/DDP细胞对顺铂的敏感性增强;细胞的DNA损伤随TBMS1浓度的增加而明显增多;细胞周期被阻滞在S期,联合用药Ⅰ和Ⅱ组S期所占比例分别为(51.23±3.53)%、(77.34±2.80)%;细胞凋亡率为(5.19±0.78)%、(7.11±1.06)%;Cyclin A的表达为1.89±0.28及2.91±0.43,CyclinD1为0.66±0.09及0.28±0.05(P<0.05,P<0.01)。结论 TBMS1显著增加顺铂对A2780/DDP细胞增殖抑制作用,Cyclin A、Cyclin D1可能参与其调节。     

中药陵水暗罗提取物暗罗素逆转卵巢癌细胞顺铂耐药研究

目的:探讨陵水暗罗提取物暗罗素(ZPT)对耐药卵巢癌细胞株顺铂(DDP)敏感性的影响。方法:MTS法检测暗罗素和顺铂对卵巢癌细胞株A2780和耐药株A2780/DDP的增殖抑制效应。Western Blot法检测A2780和A2780/DDP细胞株p65蛋白表达水平,荧光素酶法检测A2780和A2780/DDP细胞株NF-κB活性。结果:暗罗素可以显著抑制人卵巢癌细胞株A2780和耐药株A2780/DDP的增殖活性[A2780和A2780/DDP的半数抑制浓度(IC50)值分别为1.498μmol/L和1.516μmol/L];联合组(0.5μmol/L暗罗素+5μmol/L顺铂)相对于顺铂单药组,显著下调A2780/DDP的增殖活性(80.80%vs 35.63%,P<0.01)。荧光素酶法检测A2780和A2780/DDP细胞株的NF-κB活性显示,A2780/DDP组NF-κB活性是A2780组的1.92倍(P<0.01);Western Blot法检测p65蛋白表达水平,提示A2780/DDP组p65蛋白表达显著高于A2780组。相对于对照组,0.5μmol/L暗罗素可以显著下调NF-κB活性(100%vs 39.69%,P<0.01)。Western Blot法检查0.5μmol/L暗罗素对A2780/DDP抗凋亡蛋白Bcl-2的影响,发现暗罗素可以显著抑制Bcl-2蛋白表达。结论:陵水暗罗提取物暗罗素可以增加顺铂耐药细胞株A2780/DDP对顺铂的敏感性,暗罗素下调NF-κB-Bcl-2途径活性可能是其逆转顺铂耐药机制。     

多巴酚丁胺联合顺铂对胃癌移植瘤YAP和p-YAP蛋白表达的影响

目的:通过建立胃癌移植瘤模型,观察多巴酚丁胺联合顺铂对胃癌移植瘤的生长抑制作用及对瘤体组织中YAP、p-YAP表达的影响。方法:采用人胃癌SGC-7901细胞株建立裸鼠皮下移植瘤模型,随机分为5组:空白对照(CK)组、阴性对照(NS)组、多巴酚丁胺(DOB)组、顺铂(DDP)组、联合用药(DOB+DDP)组。治疗结束后摘除移植瘤组织,测量并称重,计算抑瘤率。通过Western Blot检测YAP和p-YAP蛋白的表达。结果:治疗结束后CK、NS、DOB、DDP、DOB+DDP组瘤体终体积依次为(472.09±9.44)、(451.94±16.32)、(410.14±15.39)、(246.69±15.54)和(263.42±19.55)mm~3。各组瘤质量分别为(0.84±0.02)、(0.82±0.04)、(0.65±0.03)、(0.35±0.01)和(0.35±0.02)g,其中实验组(DOB、DDP、DOB+DDP)抑瘤率分别为22.67%、58.71%和58.47%,与对照组(CK、NS)相比,差异均有统计学意义(P0.05)。DOB组和DDP组YAP表达量均低于对照组(P0.05),p-YAP表达量高于对照组(CK、NS)(P0.05),DOB+DDP组与对照组(CK、NS)相比差异均无统计学意义(P0.05)。结论:多巴酚丁胺可能通过下调YAP,同时上调p-YAP的表达抑制胃癌移植瘤生长,与顺铂联合抑制作用不明显。     

贝伐单抗对荷耐顺铂人肺腺癌A549/DDP裸鼠皮下移植瘤生长的影响

目的 探讨贝伐单抗联合或不联合顺铂对耐顺铂肺腺癌A549/DDP移植瘤生长的抑制作用.方法 建立裸鼠移植瘤模型,随机分成空白对照组(A组)、单药贝伐单抗组(B组)、单药顺铂组(C组)、联合用药组(D组)和联合半剂量组(E组)5组,连续用药4周.观察肿瘤生长情况,计算抑瘤率;免疫组化法检测肿瘤组织微血管密度(MVD);RT-PCR分析各组经治疗后凋亡基因bcl-2及耐药基因(LRP、GST-Π)mRNA表达情况.结果 与空白对照组比较,经贝伐单抗治疗组(B、D、E组)抑瘤率分别为20.96%、51.67%、50.95%,联合用药组(D、E组)效果最佳.经贝伐单抗治疗组微血管密度分别为18.6±1.14、13.6±1.14、14.4±0.55,联合用药组最为显著,而单药顺铂组与对照组在抑瘤率和微血管密度表达上均无差异(P=0.632).经贝伐单抗治疗组bcl-2 mRNA表达较对照组有显著差异(P＜0.001),但三组之间无差异(P＞0.05);五组之间在LRP、GST-Π mRNA表达上无明显差异(P＞0.05).结论 贝伐单抗对荷A549/DDP裸鼠移植瘤有抑制作用,联合顺铂用药有显著协同作用,同时提高A549/DDP耐药细胞对顺铂的敏感性,其作用机制可能与抑制肿瘤微血管形成、诱导细胞凋亡增加有关.     

Drosha基因在人卵巢癌顺铂耐药细胞中的表达研究

目的 探讨Drosha基因和卵巢癌顺铂耐药的关系.方法 分别采用实时定量PCR和免疫印迹法检测Drosha基因mRNA及其蛋白在A2780/DDP及A2780细胞中表达的差异.结果 A2780/DDP细胞中Drosha基因mRNA及其蛋白的表达量分别是A2780细胞表达量的(56.79±1.65)%和(50.16±1.34)%,两者比较差异均有统计学意义(P＜0.001).结论 Drosha基因在A2780/DDP细胞中明显下调,提示Drosha基因和卵巢癌顺铂耐药相关.     

卵巢癌细胞系Smac基因的表达及意义

目的 探讨Smac基因在卵巢癌细胞系A2780、COC1及其顺铂(DDP)耐药株A2780/DDP、COC1/DDP中的表达及其意义.方法 半定量逆转录-聚合酶链反应和免疫印迹法检测卵巢癌细胞A2780、COC1及其顺铂耐药株A2780/DDP、COC1/DDP中Smac mRNA和蛋白的表达.结果 卵巢癌细胞A2780、COC1及其顺铂耐药株A2780/DDP、COC1/DDP四种细胞系中均有Smac mRNA和蛋白的表达;Smac在A2780、COC1中的表达高于其顺铂耐药株.结论 低表达Smac抑制凋亡,低表达Smac可能与耐药有关.     

罗格列酮增强顺铂对人肺腺癌裸鼠移植瘤生长的抑制作用

目的探讨过氧化物酶体增殖物激活受体γ(PPARγ)配体罗格列酮(ROZ)与顺铂(DDP)联合应用对人肺腺癌细胞系A549裸鼠移植瘤的作用及机制。方法建立人肺腺癌细胞裸鼠移植瘤模型,28只荷瘤裸鼠随机分为7组,A组(对照组),B组(DDP1mg/kg),C组(DDP4mg/kg),D组(ROZ10mg/kg),E组(ROZ30mg/kg),F组(DDP1mg/kg+ROZ10mg/kg),E组(DDP1mg/kg+ROZ30mg/kg)。隔天腹腔注射给药,共10次,给药期间每4日测量皮下移植瘤的最长经和最短经,按标准公式:移植瘤体积(V)=最长径×最短径2×0.52计算瘤体积,绘制肿瘤生长曲线。实验末处死裸鼠,剥离皮下移植瘤,称量重量,计算瘤重抑制率;移植瘤组织标本SP免疫组织化学检测PPARγ、NFκB、Bcl-2蛋白的表达。结果罗格列酮和顺铂单独应用均能抑制裸鼠移植瘤的生长,呈剂量依赖性(P<0.01)。罗格列酮(30mg/kg)与低剂量顺铂(1mg/kg)联合应用具有协同效应(q=1.29)。ROZ处理后裸鼠移植瘤细胞PPARγ蛋白表达上调,NFκB、Bcl-2蛋白表达下调(P<0.001)。结论罗格列酮...     

C225单用及与DDP联用对子宫颈癌裸鼠移植瘤生长的影响

目的探讨C225单用及与顺铂(DDP)联用对于人子宫颈癌HeLa细胞裸鼠移植瘤生长的抑制作用及机制。方法将40只子宫颈癌HeLa细胞株裸鼠移植瘤模型随机分为实验对照组、C225组、DDP组和C225 DDP组,每组10只。各组裸鼠分别经腹腔注射生理盐水、C225(1mg/只·次)、DDP(5mg/kg·次)、和C225 DDP(C2251mg/只·次,DDP5mg/kg·次)每周2次,共4周。治疗期间定期测量肿瘤大小,观察裸鼠全身状况,实验结束时,将移植瘤完整取出,称取瘤重,计算抑瘤率,并用免疫组织化学技术检测各组肿瘤组织中PCNA、VEGF的表达。结果C225组、DDP组、C225 DDP组肿瘤的平均体积均显著小于实验对照组(P=0.008,P=0.001,P=0.000);C225 DDP组的肿瘤体积亦显著小于DDP组与C225组(P=0.025,P=0.014);各组平均瘤重分别为2.67±0.18g、1.84±0.37g、1.57±0.18g、1.2±0.09g,C225组、DDP组、C225 DDP组与实验对照组之间具有显著性差异(P=0.015,P=0.001,P=0.000),抑瘤率分别为31.09%、41.2%、55.06%。免疫组化结果显示,PCNA阳性表达率在C225组、DDP组与C225 DDP组较实验对照组显著降低(P=0.033,P=0.011,P=0.003);VEGF的表达率经C225与DDP单用及联合治疗后较实验对照组显著降低(P=0.033,P=0.033,P=0.003)。结论C225与DDP均可抑制人子宫颈癌HeLa细胞株裸鼠移植瘤生长,两药联合应用的抑瘤效果优于两药单用;C225单用及与DDP联用后可显著抑制PCNA与VEGF的表达水平。     

拓扑替康对人卵巢癌顺铂耐药细胞株作用的研究

目的:探讨拓扑替康(TPT)在体外诱导人卵巢癌顺铂耐药细胞株A2780/DDP凋亡的作用及其对凋亡相关蛋白表达的影响。方法:应用TPT诱导人卵巢癌顺铂耐药细胞株A2780/DDP凋亡,运用MTT法、透射电镜、DNA凝胶电泳检测和观察TPT对人卵巢癌顺铂耐药细胞株A2780/杀伤效应、凋亡形态、生物特性。采用Westernblot印迹杂交法以检测TPT对凋亡相关蛋白bcl-2和bax表达的影响。结果:TPT可诱导细胞株A2780/DDP凋亡,经TPT作用后A2780/DDP细胞内bax蛋白增加,而bcl-2蛋白不表达,bax/bcl-2比值增加。结论:TPT可诱导人卵巢癌顺铂耐药细胞株A2780/DDP凋亡,其机制可能与bax蛋白高表达及bax/bcl-2不表达有关。     

8-溴-7-甲氧基白杨素对顺铂耐药卵巢癌A2780/DDP细胞凋亡的影响

目的:研究8-溴-7-甲氧基白杨素(8-bromo-7-methoxychrysin,BrMC)诱导人顺铂耐药卵巢癌A2780/DDP细胞凋亡作用及细胞凋亡过程中Akt蛋白磷酸化水平的变化。方法:用不同浓度的BrMC处理体外培养的A2780/DDP细胞,碘化丙啶(PI)染色流式细胞术(FCM)和细胞凋亡ELISA检测试剂盒检测凋亡性细胞死亡,Western Blot分析Akt蛋白磷酸化水平。结果:BrMC具有诱导A2780/DDP细胞凋亡作用,并且随药物浓度的增加而增强;同时BrMC以浓度依赖的方式下降Akt蛋白磷酸化水平。结论:BrMC诱导A2780/DDP细胞凋亡与其抑制Akt活化相关。     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

Dr.Zhang Ren''''s Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

Luo Lingjie''''s Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

猪肺磷脂注射液联合经鼻持续气道正压通气对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性的影响

目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P＜0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P＜0.05),PaCO2均随观察时间的延长而降低(P＜0.05).观察组治疗有效率为87.5％,显著高于对照组的70.0％ (P ＜0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P＜0.05),且观察组明显低于对照组(P＜0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.     

Acupuncture Treatment of Vomiting

CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.     

Qiu Baoguo''''s Experience in Treating Consumptive Syndromes after Radio-Chemotherapies

Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.     

Insomnia Due to Deficiency of Both the Heart and Spleen Treated by Acupuncture-Moxibustion and Chinese Tuina

OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.     

Survey and practice of reporting quality of randomized controlled clinical trials on traditional Chinese medicine

Evidence obtained from randomized controlled trials （RCTs） has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine （TCM） and results have shown that there is an urgent need for higher quality RCTs on TCM.